I still have both 1.5 and 1.6 Crane rockers and never had an issue with them with under 700 lbs. over the nose. I heard that 700 was about the limit for those and your cam should not require that much pressure. I need to sell them as both cars have different setups now.
Get a loose converter for that thing if you are running an auto. I have an 8" in mine that goes to about 4,000 on the brake. It's super fun to drive and will fry tire instantly. Passes everything but a gas station though. It gets about 2 gallons to the mile I think.