[Lloyd-TX]

I agree 100% with Jim H. on Bullet Cams. I had never heard of them, but my cylinder head porter picked a solid flat-tappet grind from their master lobe list because he likes their lobe designs and the fact they'll grind a cam any way you want.

On my 7F6 headed 467, he went with the following lobes, and had it ground on a 108 LSA and the intake lobe centerline @ 105 ATDC.

Lobe #: Adv @.050 @.200 lift lash type
I F262/327 262 232 144 .327" .016" CTA

E F265/333 265 235 145 .333" .012" CTA

Running 1.65 HS (1.72?) rockers my net valve lift is around .535" intake and .552" exhaust.

The engine idles so well @ 750 RPM in gear it's difficult to hear the lope at times. Made 530 CBTQ at as low as we could measure on the dyno - 3000 RPM. With an admittedly worn out stock suspension on my blue Formula and running a 3.08 gear it's tough to obtain consistent 60' times even after a long burnout due to the HEAPS of low end torque. My only reservation is that since the engine as installed runs out of breath at about 5500 RPM, I'm thinking we should have picked slightly longer duration lobes.

I've decided that once I test Tom Hand's other FullBore prototype crossflow muffler that I'll go to a pair of Ultra Flows and see how badly it it's being restricted by my current system. I'll wager some 12.50's @ 110!

Current perf in sig below.