Originally Posted by Boatally Insane

I'm STILL trying to figure out how Bob could design a cam that is "spot on" for my build but "miss" on yours....
.. I keep wondering if there's something else going on we're not catching.. (ie: cam timing, rocker geometry. etc..)

I DO have 15 cubic inches on you (555 cid) but I think about a full point less compression (I'm at 8.6:1)
I believe we have the same heads.... AFR 325 cnc..
My cam is a bit smaller .644 in .629 ex. Lift. Duration 239 in 246 ex @ .050 as it's spec'd for a blower
and we made about the same power N/A.... I dyno'd mine wet with Eddie Marine exhaust...


Maybe it's because I essentially built my engine in my living room, and as ya'll say, the cam was designed at a kitchen table.. LOL


P.S. Congrats to the O/P on an awesome build

Originally Posted by ICDEDPPL

MMb thinks no one can make any power with an off the shelf cam .(most of the Bob builders can`t pull out his cams fast enough and make more power)

Not all Butt Hurt bobby thou, Jones came up with some tiny cam for me too. It would have worked great in a ski boat I`m sure, I`ll stick with my 651.





Trash day is wednesday if anyone is driving by...

Originally Posted by MILD THUNDER

How many hours have you logged on it since the dyno?

Originally Posted by Boatally Insane

I'm STILL trying to figure out how Bob could design a cam that is "spot on" for my build but "miss" on yours....
.. I keep wondering if there's something else going on we're not catching.. (ie: cam timing, rocker geometry. etc..)

I DO have 15 cubic inches on you (555 cid) but I think about a full point less compression (I'm at 8.6:1)
I believe we have the same heads.... AFR 325 cnc..
My cam is a bit smaller .644 in .629 ex. Lift. Duration 239 in 246 ex @ .050 as it's spec'd for a blower
and we made about the same power N/A.... I dyno'd mine wet with Eddie Marine exhaust...


Maybe it's because I essentially built my engine in my living room, and as ya'll say, the cam was designed at a kitchen table.. LOL


P.S. Congrats to the O/P on an awesome build

Originally Posted by Full Force

Nothing being hidden, I can post every last detail down to every single clearance, ring gap, tq specs, chain clearances, cams degreed, compression specs, dyno proven identical to each other, yep it's my fault....

. Every detail was logged... Plain and simple he didn't do a good job on my builds...

Originally Posted by Boatally Insane

Not saying you're hiding anything.. OR that it's necessarily your fault..
Was just thinking possibly something mechanical going on could be causing it to not pull on the top end...

Maybe his aim was just better when he spec'd mine.. (wait, wrong cam guy )

Originally Posted by Boatally Insane

Not saying you're hiding anything.. OR that it's necessarily your fault..
Was just thinking possibly something mechanical going on could be causing it to not pull on the top end...

Maybe his aim was just better when he spec'd mine.. (wait, wrong cam guy )

Originally Posted by MILD THUNDER

Typical 540, afr 325 heads , almost same cam he specs within a couple degrees on most similar builds

So, where are the other 700hp 540 packages he has done? It be nice to see what you are missing.

Originally Posted by Sonic30ss

I agree also on the exhuast. It's still a cruiser, so lots of idle time