I have a 68 roadrunner 4 speed 3.91 gears and a 512 stroker. This car is the fastest thing I have ever been in. I keep wondering if there is a better cam than the mopar 292-509. The motor has 10.5 to 1 pistons, ported and polished heads,crane 1.6 ratio roller rockers and a 6-pack setup. I was kinda thinking about a solid cam, but would I need different length push rods? Any of your comments would be great.

I am running a bald pair a BFGs 275/60X15. LOL.

You need to check PTV clearance

any other sugestions would be great.

call Tim at bullit cams and let a cam expert tell you what is best ..662-893-8022

Really need your head flow numbers, induction (manifold), exhaust size to get a better idea of what would be best for your combo, but generally 500" motors like solid cams in the 260 @ .050 range and ~.570-.600 gross lift with that type of gearing. Having a 4 speed gives you a little more leway because you're not as concerned with idle quality.

But for an off the shelf Hydraulic, the old Lunati 30307 240/250 @.050 .520/.547 lift will the MP 509. Another strong off the rack Juicer is the MP XE grind 251/257 @.050.

I also agree that Tim (Goolsby) at Bullet (was formerly @ Ultradyne) is one of the most Knowledgable cam guys around.