I am the owner of a tpi 305 formula and the engine used to run fine. Now when you crank it it will not accelerate properly. You mat the accelerator and it kind of idles down and barely accelerates. It use to give ya a good kick. If ya let it warm up it will not do this right off the bat. The engines been tuned up and all so what else could it be?

 

First, check the fuel pressure and let us know what it is. Should be around 43 PSI when running.