CHRIS CRAFT COMMANDER FORUM ® .......A photo-intensive technical reference file and ongoing newsletter regarding the original fiberglass Chris-Craft Commander series. This is an independent not-for-profit and non-commercial web site, not affiliated with the Chris Craft Commander Club ~~ or ~~ Chris-Craft Corporation. Our mission here is to "have fun and share information" about the Commander series (and those associated fiberglass boats on the Chris-Craft family tree) for your individual personal use, and by doing so help promote the good name of Chris-Craft, and help preserve, restore, and appreciate Chris-Craft boats. The main reference feature is the ever expanding MASTER INDEX File which contains what we believe to be the world's largest collection of documentation photos and technical information on the Chris-Craft Commander line of boats, (like these original brochure scans, featuring the iconic first 38 Commander styled by Fred Hudson, and many of the great Dick Avery renditions that followed) , (a huge collection of Chris-Craft 427 tuning and specification information), and a few words about how to use the forum.

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Hi Bruce, always good hearing from you

April 5 2018 at 4:06 PM
Paul  (no login)


Response to Edelbrock 750

The original Carter AFB on the Chris-Craft 427 was a 625 cfm unit, and the Edelbrock 600 cfm marine #1409 is a viable replacement. I've done the calculations many times and the compression ratio of a marine 427 along with our rpm range, which is generally in the 4,000 range and maybe 4,500 for a runabout just won't warrant anything as big as a 750.

Glad you got the issue resolved, but in the past I had issues with cross sparking with the crappy ignition systems they installed on boats "back then" which may have been a result of a bad ground, or perhaps moisture coming up from the oil sump into the body of the distributor, or whatever, but the issue was solved with a DUI HEI-style marine igniton. It's amazing what 50,000 volts will do for you. As I recall you already dealt with that with an aftermarket ignition system.

Regards,
Paul

 
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