what do you guys think of the gm fast burn heads, and the vortec tpi base is it a stock intake or does it have bigger runners or more material to port?

 

The Scoggin-Dickey TPI intake for the Vortec (and also fits the FastBurns) is based on the Edelbrock TPI intake.

The ports (at the runners) on mine measured almost 1-5/8" before porting (stock is a little less than 1-1/2"). There is plenty of meat left that could be opened up (I opened mine up to 1-3/4" to match my AS&M runners).

I had the most work at the injector nozzle area where they protruded quite a bit into the ports since the Vortec/FastBurns use a taller port but the injectors are at the stock location.

jms

 

GM Fastburn heads are sweet, they flow awesome numbers, i mean there are alot better flowing heads but if u looking for a good set of heads that arn't gonna dig a well in ur pocket then these heads are awesome.. vortec tpi base is aftermarket, i believe it is slightly bigger than stock, i could be wrong on this though, maybe somebody else could give you a more definate answer about it.. Fastburn heads =



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1988 Camaro Iroc-Z
Medium Orange Metallic