Big Al of AK Racing just prepped up a set of the new ProMaxx 317 heads for my Whipplecharged 500 EFI build. First of all I am pleased with the casting quality of the heads, much finer finish than the Edelbrocks I used on my last build. Deck thickness is very beefy as well as the machining is spot on. Al talked me thru all the special details need for a marine application, and especially a supercharged one. Guide clearance, seat width, 2.30 intakes and Inconel exhausts, spring selection and setup to match my cam, and a quick turn around. Will not have any operating details for a month or two but I am excited to bolt them on. Wish I could post some motorhead porn pics
Al also included a couple of special details, such as a sweet "Supercharged" logo on the front ends. Easy and knowledgeable guy to work with, and very affordable for true "ready-to-bolt-on" heads.

Awesome , enjoy.

Sounds like a true Marine ready head, not some snake oil . Nice!

Nice work Big Al! Good product and service to match.

Thankx Hax!! What's your number out there... had in in my old phone but it went for a swim last summer!! lol

Thank you Stephen for the kind words.. It was my pleasure, here are some pics

Well, finally got the rest of the details on our build worked out and got the boat back in the water. All I can say is Awesome! I don't have the luxury of a dyno to test so I am doing it the hard way, see how fast we can go. 83 mph at 5300-5400 (tach bouncing a bit) It pulls like a freight train and I have to give some credit to these heads setup by Al at AK racing. I have near 17 hours on the boat with multiple full throttle runs getting the tuning right and have no issues to date.
Thanks Al!

Good stuff

I love a story with a happy ending.

Come to chinatown in chicago. I used to have to pay extra for happy endings . With big al , its already included