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To be honest, a 390 Holley 4V will perform much more efficient than the 500 2V, yes it will need the secondary metering plate kit, a set of 68 jets in the primary and around 70/72 In the secondary metering, more money but in the long run it will pay for itself in fuel and performance.
Start with basics first, is engine and drive centerline plumb to boat centerline? Next, let the rudders loose from cable or drag link, run engine up, do they favor one position from neutral? Meaning is the rudder stick pushing back to where you have to keep pressure on it to make it go straight? If ...
- Sat Oct 26, 2019 6:43 am
- Forum: Aircraft Power Only
- Topic: Anyone have a standard GPU 220 CRANKSHAFT FOR SALE
- Replies: 1
- Views: 953
They are about like hens teeth anymore, Steve at warrior aircraft may have one, why the need for a standard crank? If stroking it is reason, send a good .010/.010 crank to Len's crankshaft service and have it welded and offset ground.
If cylinder bores are in good shape, a proper valve job, a set of 640518 pistons champhered at top edge to clear head crown, and a good mixture tuning of a 500 Holley at wide open throttle, minimal idle time to read plug colors, you would be impressed by the machine. PS: degree the cam about 8-10° a...
- Sat Oct 12, 2019 8:30 am
- Forum: Automotive Power Only
- Topic: Does the dark side really have cookies????
- Replies: 14
- Views: 2534
Are you trying to get away from the hunting avgas aspect of having an aircraft powered boat? If so, I would suggest a full retrofit to your aircraft engine to electronic fuel injection and ignition and run E85, very efficient and being a closed loop system, the fuel will not stagnate in the carb as ...
- Mon Oct 07, 2019 8:28 am
- Forum: Aircraft Power Only
- Topic: Lycoming 0360 idles but won’t run above idle
- Replies: 18
- Views: 1337
For what it's worth, that float assy is tin, it can be resoldered and put back in service if the need was emergency driven, but thanks to this great wealth of information and resources of a website you got it handled.
The older thurman hulls had heavy taper to drop the nose farther, those boats were built specifically to have a proper sized drawer on each side to haul a certain size package(s) that were extracted from certain areas back in the good ole boy days, wink wink.
Forum change looks good, runs smooth, still have to remember that one can't back out of a reply to a post and go back to the thread without resubmitting same reply, having to go to dropdown menu and click active topics to navigate, spoiled by Facebook I guess, haha, great work Rick, appreciate you a...
- Sat Sep 28, 2019 7:21 am
- Forum: Hunting & Fishing
- Topic: EMT ladder stand chair??
- Replies: 4
- Views: 958
Just make diagonal struts from rear legs back down to ladder frame uprights, couple good size washers welded to seat to strap to tree with a ratchet strap, plus a safety harness for you, in case you doze off, I know of a couple people that are partially paralyzed due to dozing off, falling and fract...