S4 E30. MPG & We modify the 670 cc Predator camshaft by removing the compression relief.

Season 4 Episode 30. Jimbo opens up the 670 cc predator engine and removes the camshaft so it can be modified. Will removing the compression relief mechanism make this V-Twin hard to start? We will find out Jimbo takes the 1969 Renault with the modified predator engine out for a test drive to measure the fuel consumption. During the test drive Jimbo encounters another problem. Can this engine be saved?