XSR does it again!!!!!!!

This is Gregg Herberts all motor 427" Monster! It has XSR ported Vic Sr's, 15:1 compression, custom cam with .800" lift, ProSystem carbs., and a XSR modified sheetmetal intake. First full pass netted a 8.95@150 mph!!!! 

GREAT JOB GREGG H.

This is Randy's 427" monster. It has a Dart block, 4.125" bore w/ a 4" stroke Scat lightweight crank, Probe rods and pistons that yeilds a 14.7:1 compression ratio. The motor also has a custom cam from Jay Allen/Camshaft Innovations, that works killer with the XSR ported Canfield heads and XSR ported Super Victor intake. The combination has managed 731hp @ 7,000rpms, with a foot smashing 610lb/ft of tq @ 5,500rpms.

Awesome Job Randy!!!