[72projectbird]

Since its just a Firebird go all out! If it was a real T/A I would stay with a 455. An LS with a blower on it will provide ample amounts of fun. And this is coming from a guy with a 455 and an LS powered car. The Poncho power plants are great, they really are, but theres something about the high winding crazy nature of LS plants that I just love. They're quite snappy, build power very easily and the aftermarket support for them is huge! My Dad has a LQ4 in a 69 Camaro with a Th350 behind it and it dynoed @315rwhp on the stock Silverado tune. This is before a simple cam and spring swap which will put it right around the 400rwhp mark. Depending on how you do the swap, it might be a lot cheaper then trying to build a monster Poncho. You could even get a 6.0 out of a truck and throw a blower on that to save some serious cash over buying an ls2. Whatever way you go, you cant go wrong.

They're will be people by the boat load telling you to stay with Poncho power (this is a Pontiac site after all) but in the end go with whatever you know and like. Like I said if it was a real T/A I would say 100% stay with Pontiac power, but since it isn't its free range!