Cam Suggestions
12-08-2016, 12:09 AM
#1
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Car: 1990 Iroc-z
Engine: LS3/LSA blower
Transmission: T56
Axle/Gears: 3.27
Cam Suggestions
I have a 1990 5.7L, automatic with ported edelbrock intake, ported slp runners, edelbrock headers, 24lb injectors, 58mm throttle body, with gmpp fast burn heads, I am looking for the biggest cam I can put in it and still pass the CA SNIFFER TEST, im willing to swap out torque converter and tune just to pass sniffer test...thanks in advance
12-15-2016, 01:27 AM
#2
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Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: Cam Suggestions
I passed with to comp xfi 268
12-15-2016, 01:28 AM
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Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: Cam Suggestions
I passed with a comp cams xfi 268 cam
12-15-2016, 08:25 AM
#4
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Car: 1990 Iroc-z
Engine: LS3/LSA blower
Transmission: T56
Axle/Gears: 3.27
Re: Cam Suggestions
Thats the cam I am leaning towards but im not sure on how to increase maximum valve lift on the fast burn heads to accommodate for the xfi268
12-15-2016, 03:22 PM
#8
Re: Cam Suggestions
I would typically run abit more spring with that cam depending on the intake manifold. With tpi it wont go much over 4800-5000 so you can get away with bit less spring pressure. Hsr miniram i would stiffen up as cam will go to 6000 in a good headed 355. Lobes are pretty aggressive
04-13-2017, 01:23 AM
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Car: 1986 IROC-Z
Engine: 350 5.7 TPI
Transmission: 700R4 2500 stall
Axle/Gears: 3.23
07-07-2017, 02:49 PM
#13
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Car: 88 Firebird Formula
Engine: LO5 5.7 TBI/Ebl Flash
Transmission: 700R4
Axle/Gears: 2.73 stock rear end
Re: Cam Suggestions
Whats a good head match for the XFI268? Ca legal of course
07-11-2017, 11:43 PM
#14
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Car: 1986 IROC-Z
Engine: 350 5.7 TPI
Transmission: 700R4 2500 stall
Axle/Gears: 3.23
Re: Cam Suggestions
On mods during that time AFR heads as&m runners big mouth base 58 mm throttle body SLP shorty headers stock 5.7 24 lbs injectors 10 -12 base timing total I'm pretty sure around 32 to 34 total on a 350 low compression during smog set at 6 or 8 air fuel was always good and ran a vigilante 3200 gears 3.23 car was good for mid 12.s on motor on a mickey Thompson drag radials mid 11s spraying
Last edited by valencia1z; 07-11-2017 at 11:59 PM.