Okay guys, I just picked up a 76 Chevy K20 and I'm tired of the problems associated with cold weather and this carb. I'm also tired of the stumbling that no one can figure out and the horrible mileage. I found a donor car for a TPI system and I'm looking to convert it.

The truck has a factory replacement Goodwrench long block that runs decently and I'm hoping that the torque that the TPI puts out will match the factory 4.10 gears and the 4 speed.

My question is this: What all will I need to do in order to pull this swap off correctly? The donor Trans Am is an 86 LB9 so it's a MAF setup. Do you guys have any tips that can save me some headaches and some time? Thanks for the help.

Also, will the 19# injectors support a 270hp engine? Maximum rpm that will be turned is only 4000 or 4500. I figure I'll probably need an AFPR in order to get the fuel flow right.

 

Also, my object with this conversion is absolute maximum torque off idle to about 3000. Any additional horsepower that I can gain is a plus obviously. What can or should I do to this intake before I do the swap in order to make the most power on the bottom end?

If it were a car I'd port the intake and siamese the runners. Since my object though is torque I don't want to sacrifice intake velocity and possibly hurt my bottom and midrange trying to make more horsepower. Any ideas?

 

*bump*

Anyone?

 

Most members honestly won't respond, because not only is this question asked so many times... it's not really Third Generation F-Body related (albeit, it is TPI related though).

But anyways, the following website will help you out tremendously;

Click Here

Good Luck!

 

Is it possible to optimize a TPI setup for more bottom end torque as well as gaining mid to upper end horsepower? I need this truck to have as much bottom end torque as possible but I'd still like it to rev up some (4500ish). The cam I have in there is perfect for this combination as long as the TPI doesn't restrict it any.

If I port match the runners, plenum and base am I going to sacrifice port velocity and bottom end power?