all im going to say is the r1 is gana caoust u a fortine. and plus i know its a big motor and has speed and power but ive seen cubs, strokers, 4 mills, 10 mills that have beat r1 banshees. its like some cars. i beat ud take a 454 over a 350 any day. but the 350 could smoke a 454. it all deponds on setup. if it was up to me id pick a pv motor. also with the r1 ur gana have no space for any thing u have 2 cram the electronics in and radiators oil cooler gas tank. its gana take alot more work money every thing and a cheetah could have a good chance at beating the r1 shee