Intake manifold upgrade worth it?
02-01-2016, 11:43 PM
#1
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Location: Philadelphia, PA
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Car: 1988 Camaro Iroc-Z
Engine: 350 TBI
Transmission: 700R4
Axle/Gears: 3.73
Intake manifold upgrade worth it?
I have a completely stock 350 SBC at the moment. Currently I don't have a lot of money to spend on parts, and I have to replace my brake booster and TPS. I was contemplating on upgrading my intake manifold, but unsure if the upgrade would even be worth the money. I was looking at the Summit carb manifolds since the TBI are so expensive. I know I'll need to shell out extra for the adapter, but really can't find any information on any gains from upgrading the stock manifold.
02-02-2016, 01:58 PM
#2
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Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Intake manifold upgrade worth it?
If you have a truck engine I don't think an intake alone is going to get you much bang for your buck, the cam is shitty for a car & the heads are shitty period. You really want to replace the heads, cam & intake at the same time so they all match.
02-07-2016, 07:48 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Intake manifold upgrade worth it?
I had a very noticeable power gain with both a Performer RPM and Weiland 7525 when I had a nearly stock 1-ton 350 long block. Stock heads/Stock cam/ 1.6:1 full roller rockers and Doug Thornley Tri-Y headers.
02-07-2016, 07:49 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Intake manifold upgrade worth it?
Heads are NOT the problem. Far bigger restrictions in other places.
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