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My cam has significant overlap, so the car smells rich at idle even running at 14.5 A/F. I started researching what guys are doing to combat the smell, and found a lot of guys run the high flow race catalytic converters with very good results. Anyone have any experience with this. I have a...

I had my EFI tuner bump up the stock ECM rev-limiter by 500 rpm, because sometimes it hitting the factory rev-limiter just before my modified 200R4 would shift into 2nd at wide open throttle. I believe he told me the factory rev limit is 6100 rpm, and the trans should shift just above that rpm...

My 5.9 stroker Magnum was smoking on hard acceleration in 3rd and 4th gear. It wouldn't do it in 1st or 2nd....so I though. I suspected bad baffling in the valve covers causing the PCV system to suck oil, which it did a bit. I thought maybe my intake was sucking oil, my rings hadn't seated fully...

I was getting significant smoking during high rpm especially during hard upshifts on my fresh ( < 150 miles) 408 stroker motor that is based on a 2001 5.9 Magnum block. I was praying that it wasn't the rings not seating. It didn't smoke at all at low or moderate rpm, and it wouldn't do it...

I full-bypass, plumbed some Edelbrock fuel rails with #6 braided line and 30# 2-hole injectors from FiveoMotorsport. I hand made some hold down brackets out of some plain strap steel. It came out solid as a rock and doesn't look too bad, as most of the straps are somewhat hidden between the...

Lots of cleaning, painting and assembling parts. I've never done the Chevy style rocker arms that the aluminum Edelbrock's use. I have the Hughes stainless 1.6 to 1's and the hardened pushrods, but the guide plates all came loose with the bolts not tightened. I torqued the heads on per the...

I built a 408ci stroker to replace a junkyard motor that had 145 to 150 psi in all cylinders except #2. The new motor is a stock Magnum block with a Hughes bottom end and their CNC Super Prep heads with a few extra hours of hand blending in the bowls etc. I'm running one of their Dave...

The Background: The 1968 Barracuda I picked up about 10 years ago started out with a poorly tuned, rebuilt slant 6 with maybe 85k miles on it. It was a nice, rust free California car that spent most of it's life in a garage when not being driven. It had freshly rebuilt 9 inch drum brakes on...

I'm building a 408 Magnum with a Hughes engines kit, but having the short block put together at a local shop. They told me today that 7 of the pistons are .002" out of the holes and one is .003" out of the hole. The deck is dead flat, so no need to cut it. I'm running Edelbrock Super prepped...

I currently have the stock kegger style intake on my 2000 EFI 5.9 Magnum, and I had to install a 1 inch spacer between the top kegger mounting flange and the throttle body because the throttle actuating arm hit my aftermarket aluminum fuel rail on the passenger side. You can see it in there...