Originally Posted by rcmoe

Hi all. I have the older version P5 and I beleive its either the 06 or 08 version. I recently did a complete rebuild on it and I've installed a plus 4 carb on it. Im trying to get more bottom out of this engine and havent really had much success. First I had an 053 pipe on it then down geared and that helped a little but killed my top end down the straight so I'm going to gear back up. FYI I run 1.1 springs all around. I also tried an 0801 pipe on it but that didnt help much either. The only other pipes of mines I havent tried yet is my 9901 and my 086. Also Im not the greatest tuner in the world but i think I have it tuned decently but I plan on having a more experienced guy re-tune it for me. Other then all that is there anything else i can do to try to get more bottom out of this eng? Thanks in advance for any info.