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  1. M

    Low to mid engine stumble when given throttle. Mercarb 4.3l

    I just rebuilt the mercarb on my 4.3l. Also a new fuel filter. The engine hesitates on application of throttle then takes off. This occurs from idle to 3000rpms. Accelerator pump arm, I've tried all three arm positions. I looked at a online mercarb rebuild video and it showed a screen and...
  2. M

    Smart Tabs upper mount- must it be on the same plane?

    My 18' Mariah does not have a flat transom. The transom upper part is extend to maximize space for the built in small swim deck. If I mount the bottom hinge(per instructions) 3-5" from outside edge of boat the stabilizer shock is not able to fall forward to the transom. The upper mount would...
  3. M

    Smart tabs install top bracket?

    Is the a numeric measurement used from the bottom plate to the top bracket? The instruction manual isn't clear to me. Allow trimplate to rest in the deployed position (do not hold the plate). What is the "deployed position"? Is the deployed position the maximum downward position? If so...
  4. M

    Trim tabs adjustable or fixed?

    My 18' Mariah could benifit from some trim tabs to from bouncing up and down with the waves. As well as better take off and staying on plane at lower speed. Mt question is: With adjustable trim tabs like Bennett do you really adjust them very much during your day out? I am not looking for...
  5. M

    Alpha gen1. How much prop spin in Neutral at higher engine rpms?

    Wondering what's typical / normal? My 2001 4.3l alpha gen1 when in neutral and at 1500-2200rpms the prop will spin.. This is out of water with rabbit ears on. Unknown if in water with water resistance if the prop would move.
  6. M

    4.3l vortec 190hp two barrel to a Edelbrock 4bl performer intake

    So I've read dozens of threads on 4.3 performance. General thoughts are a gain of 10-20hp and 2-3mph top end along with overall slighty better accleration. But most all of what I read is 2nd hand talk. Does anybody have real world experience on a 4.3 vortec swapped over to 4bl edelbrock and...
  7. M

    Trim tabs- why no factory option or standard?

    I've read all the reviews and understand the physics behind why and how trim tabs work. But what puzzles me is that there are at least a dozen high end modern boat hull designers and none of them (that I know of) sell as a factory install or dealer option the trim tabs. 20k for a modern 18'...
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