[AdamIsAdam]

This is a great thread and I just re-read the ENTIRE thing! (ouch!) So I'm bumping it up for those who have never seen it.

I'll ask my question of Cliff publicly so maybe others can benefit from it...

Cliff,
When I was considering a cam change a while back you were nice enough to make a suggestion. I have been doing other mods since then including finally installing my 1/2" fuel delivery (RobbMc) this week. Dyno session coming soon...

Anyway, my question is this:

How do you think the Ultradyne 288/296, 231/239 @ .050” cam on a 112LSA instead of 110. (Leave it on a 110 if you want a “choppy” idle and less vacuum at idle speed) or the Crower 60919 cam with the ICL at 109 and Rhoad’s lifters compares to the 041 with Rhoad's lifters?


For those who don't know, I've got a XE274 cam in my 469 stroker. Details are:

WAS A 400
o Bored and stroked to 469ci (4.19 x 4.25)
o Eagle crank
o “H” beam, rods
o Ross Pistons
o Fully balanced by Butler Performance
o 10.13 CR


o Cam: CompCam XE274H-10
 Adv Dur: 274 Int; 286 Exh
 Lobe Sep: 110
 Lift: 488 Int; 491 Exh (Net: 536 Int; 540 Exh with 1.65 rockers)

o Heads: #46 with screw in studs, 75cc chamber (Rebuilt May 2015)
 Ferrea Valves (Int: 2.11; Exh: 1.77)
 255 cfm at 527 lift
 1.65 roller rockers by Harland Sharp
 Comp Cams double springs
 Ported and polished
 Port matched to intake
 Screw in studs
 Crossover filled
 ARP Head Bolts

o Edelbrock Prototype P4B-Q4 Extensively Ported by SD with Cliff Ruggles
o Cliff Ruggles Custom Q-Jet
o MSD 6AL electronic ignition

• Clutch, Transmission, Rear
o McLeod Racing Clutch 75221-Super Street Pro
o Lakewood scatter shield
o Muncie M21 fully custom rebuild with hardened gears
o Hurst Competition Plus shifter
o Dual drive shaft safety loops
o Eaton Posi Unit, Timken Bearings
o 3.42 Motive Gears