I have my motor out for some winter upgrades and it looks like I am getting some reversion? I installed my cam 2 degrees advanced but would like to retard it as I am not running 11:1 compression and would like a little more rpm on the top end. I have Imco powerflow exhaust and have been told...

Freshining up a 468 for my Eliminator. Going to use Hardin logs with turndowns. Comp says I shouldn't have any reversion problems with 112 lobe deal. What do you guys thikn? 11-461-8 - Xtreme Marineâ„¢ Retro-Fit Hydraulic Roller Camshafts

Has anybody on here switched to center rise and had a problem with reversion? I took off my logs and put on imco thumper with the short risers and when I took them off today I found water in all my exhaust ports with rust. The boat had a pretty bad surge at idle bit drove fine, I figured it was...

So I got my 20 V-Drive Spectra all back together but now it's milkshaking. We smoked and pressured checked the engine and no leaks. Checked the chiller and headers they look good. So I idled the boat on the trailer for a couple minutes and took the headers off and sure enough all the header...

I'm looking at Quick fuel. Would either help low end rpm power? The anti-reversion sounds like it might. Worth the money? Tim

I have a 565 bbc with a Dart tunnel ram and C&J prepped 1050 dominators. Are the anti reversion plates worth the bucks? $169. ea. and they claim 10 -15 hp for a single carb deal.

I may have posted this in the wrong place before, I hope this is where I should ask this question. I have a 4.6 twin cam ford engine in a 19' Jet. Am putting a turbo (BW S475 1.10 AR 83mm with Air to Water intercooler) on it this winter and want to know if I can run the exhaust out the transom...

I have a 4.6 twin cam ford engine in a 19' Jet. Am putting a turbo on it this winter and want to know if I can run the exhaust out the transom (single) without reversion/sucking water into engine. The 4.6 twin cam has a bit of overlap due to the twin cam 4 valve arrangement. The turbo will be...

Preface: If you own a 300XS Outboard motor and are running twins or single in the triple digit realm you will have water reversion issues. What is water reversion? It occurs at high speed [typically 85+ MPH] when the head water from the motor is dumped out onto the wingplate. Upon exit at...

Here is the situation. I have a new motor its a 638" bbc, dart block, intake and heads. the headers are cmi split tops. the cam is from comp but it was a teage specific cam. the specs on the cam are 258* intake 266* exhaust* @.050" on a 114 lobe seperation. the headers have no drop at the tail...

I'm having a motor built with a fairly stout HR cam. 572 chevy, single carb. Not setting the world on fire. Appx 750 HP. My only request to engine builder is that I want to run Log style exaust for noise reasons (little kids) as well as makes a nice sleeper. I know it'll cost some power...