Originally posted by uaerc
One more thing....... No body has actually clarified whether the jp is faster or the M Collari ??
There is a 100$ diff in both ? !!
Did some googling.. and found out that the JP pistons are rare !!! 
Should go in for the M collari ??? can a M collari piston be replaced with a standard one ? ??
Any one has dynoed these 2 engines .........
Based on what I saw at the WinterNats, the JP is very fast. Both of Swauger's cars were probably the fastest. I know he is a "Factory Team" guy but damn his cars were fast!