1986 c30 454 build help

[Neapawn]

I have a 86 c30 454 that I am looking to build strictly for torque. The only change I have are doug thorley tri y headers with x-pipe and 2.5 exhaust. I have the peanut heads. My question is what intake and cam would fit for torque and what would I expect to gain. I know the engine has poor compression but I believe that's good for longevity. If I did get heads and did not change anything else what gains would I expect. Again I just want low rpm torque. If you guys think heads should be changed to oval what cam/intake would work and how much could I gain. Thanks!
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[Neapawn]

FYI it's a single cab dually with manual 4 speed one speed being granny gear
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[Neapawn]

Not a single reply? Anyone know a different forum where I could get feedback??
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[meatwagon83]

750 carb performer intake and a 260-268 cam would do you good

[jimbonice]

You might have better luck posting on the engine forum. For what it's worth, keep the stock carb and heads and find a cam in the 1500-4500 range.
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[b454rat]

I had a stock 454 that I put a 268 high energy cam in. Truck already had headers and duals. it was lifted 6" with 35s, and pulling out of my parents driveway with a slight uphill grade, mashed it and smoldered the tires off.

I would change the X-pipe to an H-pipe, might give you a little lower end torque.

[Neapawn]

What do you guys think of a dual plain intake with the isky mega 275 cam? Sorry I didn't know there is an engine board!
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[meatwagon83]

dual plane yes, performer or the like, not an rpm, 275 is too big, id bet that cam doesnt come in until 2k rpm, you need one that comes in at 1500 tops, 268 or smaller