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tbi spacer and injector spacer

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Old 11-08-2009, 09:26 PM
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tbi spacer and injector spacer

Have any of you guys put this on your tbi and actually noticed a difference i am thinking of buying them from here http://marine-performance-parts.com/...eanerstud.aspx
they say they gain 15hp and i am thinking of putting a 350 maybe with a cam
Old 09-09-2010, 08:18 AM
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Re: tbi spacer and injector spacer

I put an injector spacer on my 305 and noticed an increase in throttle response. i don't know how much of an improvement there actually was, but based on the seat of the pants experience, I thought it was well worth the money. Not to mention it is a pretty easy modification to do.
Old 09-09-2010, 11:24 AM
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Re: tbi spacer and injector spacer

sorry just joined yesterday how do i post on here
i mean start a new thread i guess
Old 09-09-2010, 11:51 AM
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Re: tbi spacer and injector spacer

I have the injector spacer and I thought there was a slight difference but who really knows! Its a cheap easy mod to do. I'm sure it helps when combined with other mods like headers at higher rpms.
Old 09-09-2010, 10:59 PM
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Re: tbi spacer and injector spacer

To make a new thread you choose the correct place were you wanna make then click on the left corner were it says new thread. Thanks I already got the spacer for freeand got it installed but really didn't notice difference.
Old 09-14-2010, 06:03 PM
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Re: tbi spacer and injector spacer

I made my own spacer modelled after the one you're looking at and it seemed to give it a bit better throttle response and made my old lo3 breath a little easier in the higher rpms. I think the 15hp gain they claim is a little optimistic though. If you do decide to use it do the ultimate tbi mods with it for the best result.
Old 09-14-2010, 08:50 PM
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Re: tbi spacer and injector spacer

I bought one off ebay for around $25. Check around there.
Old 08-04-2019, 09:15 PM
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Re: tbi spacer and injector spacer

What's a good source for new exhaust donuts for the L-69 manifolds?...

Last edited by T.L.; 09-05-2019 at 05:23 PM.
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