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Old 01-13-2021, 09:43 PM   #23
MARKDTN
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Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,134
Re: 1972 307 cam selection... HELP!

Quote:
Originally Posted by geezer#99 View Post
I looked into a tpi years ago.
These guys might be your best bet

https://firstfuelinjection.com/
Interesting. If I had a hi-po 350 I might consider. But like $2400 for unit and harness. I can do the whole thing for $800-1000. On a stock 307 for the OP I think stock GM TPI will be more than adequate-and parts are available anywhere. The biggest obstacle with stock TPI is high rpm breathing. You improve runners and need a ported plenum then the lower intake is too small. But these problems are 400 or 383 or high revving 350. Nobody runs out of air on a 305 TPI.

If I were to buy a harness today I would probably buy from Howell. You can get them cheaper but Howell is a very high quality piece.

Haven't heard from OP so don't know what he intends.
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'83 K20-TPI
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'79 C10-ex-diesel(SOLD)
'07 Tahoe(Son driving)
'14 Suburban-DD
'71 C10-current project
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