Head porting
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
Head porting
I know a few of you have ported swirl port heads and have got decent numbers out of them .. Do any of toy have any tips/suggestions ? What to do with swirl ramp ? Bowl area ? Etc. I've already started on the exhaust ports pictured below .. Any help would be greatly apretiated
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