1978 Caprice, the new on-going project! (Yes, I'm still alive!)

[88Vic]

The cheapest dual plane will do. I like Air Gap manifolds since they resist heat soak better, but they're pricey. Any Edelbrock or Holley/Weiand low rise dp will be great for that engine.

I had a Holley Street Dominator (same as their current Strip Dominator) low rise on my 86 C10. Would've liked to have have a properly tuned Holley carb on it, but the previous owner threw an Edelbrock 1406 on it since he didn't want to tune it. It ran fine but I could tell a better carb would've helped, that and getting rid of the 2.73 gears.

If you ever replace the engine in this, consider the GM 290hp crate 350. That's what I had in the C10, and it was a strong engine, even with the crappy gears it was never short on power.

I'm very interested to hear how well that 305 does with a 4bbl. Like the others said, try to sell that single plane if you can, a dp and 3.42 gears like you said will really wake it up, nothing wrong with a 305 at all.

[DerekTheGreat]

That should do.

[murphmobile2]

This is the dual plane I was considering... it's affordable at least.

http://www.jegs.com/i/JEGS-Performan...rentProductId=

[DerekTheGreat]

Slap that on and sell the single plane. I think you'd have a hard time even getting that thing to idle, let alone get off the line with 2.43 cogs out back. Probably wish you had your old 2bbl at that point. My cammed 318 in my Plymouth sucks off the hole. 1971 MoPar 4bbl DP manifold from 340, 600 cfm Holley. Turd. So bad VicCrownVic beats me off the line and I don't begin to catch up until I'm halfway through 1st gear. Car needs better gears, higher stall and better manifold.

[murphmobile2]

Yea... The Street Dominator I have is an old 70's design. Has no value, nobody wants to pay enough for me to break even on it.

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[DerekTheGreat]

I thought in your earlier posts you said you ditched the single plane for a dual plane? Dual plane would certainly be better for peanut cam stock motor. Thing just won't suck enough air for that, single planes are better suited for high RPM. I can't say it any better than Bobcat.

[murphmobile2]

I have more in this intake than it's worth between buying it and having it redone, and I've just been sitting on it for months. Ironically, no body mentioned I shouldn't use it months before I had it refinished. As soon as it I had it redone... Then everybody chimed in. So I have absolutely no use for it, other than to just throw it on so the car is at least drivable again.

I just can't justify spending money on another intake now, I'm in the process of putting an engine in another car too, so that one alone is killing my bank account.

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[Bobcat]

Single plane intake, big mistake.

Gonna seriously lose some drivability torque. Not for a stock motor. Or really even a street motor.

[murphmobile2]

I need to just get the rear end out of a 9C1 or Impala SS with disc brakes... 8.5 rear with 3.42's, lol.

I also just had a fuel line leak and after I fixed it, the Delphi fuel pump I had just put on somehow fell apart internally. Right after that, my ignition control module went out! So it's finally time to do my intake swap and throw my four barrel Holley on, as my Rochester 2 bbl is going out! Added a couple chrome pieces so far... So that's a little fancy at least, lol.



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[88Vic]

With gears that high I'd be manually shifting it. Guess it isn't so bad when you don't have OD, but since I don't take mine on road trips, I couldn't deal with that, my 3.08's are bad enough.

[murphmobile2]

Sorry I don't update much, too many projects going on at once, and not enough time for them all!

I did finally get to something today though... New diff cover with a fresh fluid change! Ebay chrome cover and some Castrol 80W90!

I'd say it was time!





Clean! And I found out it only has the 2.41 gearing... Too bad, but oh well.





Much better!



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[murphmobile2]

Hmmm... Honestly, you'd probably be happiest with a pair of Magnaflows then.

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[88Vic]

Not yet, I will when I put headers on the car. Right now, it's cats only, no mufflers. I'd use real long glasspacks too, want a more mellow sound cruising.

[murphmobile2]

The glasspacks are so short... I don't think it's possible for them to get louder! Lol.

They held up real well on the '85, but I also ran the 24" glasspacks too. Did you get rid of your cats too?

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[88Vic]

How are the Thrush glasspacks holding up? Have they gotten a lot louder over time? I was thinking about putting a pair on my car after I put headers on it, and I'd like a pair that doesn't eventually sound like no mufflers at all. How did they hold up on your 85 when you had it?