Brandog87GTA

I was told that if I have the 305 heads ported and polished I will have a better compression ratio than what I have now. I know the valves are smaller, so that will build compression, right?would it be worth my money to have these heads ported,polished, with a 3 angle valve job?

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Bright red 87 GTA with 350 tuneport. Basic mods such as K&N filter, Flowmasters, Wells MAF, TPIS air foil, Accel 8.8mm plug wires with Bosch platinum plugs, Accel distributor cap and rotary buttons.Gutted cat. Hope to port runners and plenum in about 2 weeks.

Jarod87IROC

I originally had LB9 305 heads on my 350 and it was slower than hell. I ran a best of 15.29 with my g-tech. I think you'd be better off having your L98 heads ported and maybe going with a ZZ4 cam or something similar. Just my worthless opinion.

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87 IROC
350 TPI 5-speed

Edelbrock Aluminum Heads, LPE 219 Cam, Super Ram, SS Wheels, Graphite Leather, etc. Click here to see the rest.

THE crew: ICON Motorsports

swinsbird

yeah stay with your L98 heads. Don't put 305 heads on your engine because thats pretty ghetto. there's other ways to improve preformace and save you engine.