E85 conversion HP1000 with annular boosters

[ChrisR]

Hey all, trying to work out if converting my annular booster HP1000 to ethanol is doable with some E85 blocks I have.
I originally bought the blocks as a kit to convert a meth dominator I was going to try but I'm thinking this will be the lesser of two evils, avoiding adapters, holes in the hood and such.
The engine is a 427 sbf 12.5 comp 7k rpm in a basic small tyre nitrous car.
The main body is a 1.56? venturi.
1 3/4 throttle plates.
The normal red 12 hole annular boosters with a .176 booster channel which I measured with a nice fitting drill bit and callipers.
The angle channel is also 0.176, I didn't dig any further into the block in case that angle channel size is off for what I'm doing.
Black 5 hole emulsion blocks, originally supplied as part of a 1050 dom conversion kit'
The work required for appropriate sized bleeds/restrictions isn't an issue.
If it is doable with these blocks can anyone ball park me on jets/bleeds/restrictions/emulsion positions to get me a good runner for the dyno day.
I've read through miles of posts as the subject peaks my interest but found nothing referencing these annular boosters.

I was scouring the old site for hours and posted this there without realising there was a new site. Any guidance appreciated.

[jmarkaudio]

I would start with a .046 bit for idle feed, number 56, and down at the bottom. Might require threading. Idle air bleed start with 65, .026 for main air bleed. Start with a Holley 90 jet with annulars. Whose blocks are you using, do they require a headed bleed or can you use a set screw?

[ChrisR]

Black blocks from HPI. Set screws 6/32 already in emulsion and lower idle feed locations. Should I do restrictors for the transfers slots in the 4150 body, if so, whats a good start? Also on emulsion, these have 2 holes of the 5 at I think .026.

[jmarkaudio]

Don't use t-slot restrictions with a stock Holley or BLP base, slots are small enough they don't need it. I like small emulsion with E85, especially if it has a .026 or larger kill bleed.

[ChrisR]

Thanks Mark. On small emulsion, I'm keen to try your 14 18 22 set up I read up in the old Motorsports Village post. Is it worth the effort while I'm in there? I don't mind doing the work if it's a benefit. Again relating to the different draw on my annulars vs the down legs you guys tested on that dyno session.

[jmarkaudio]

Gains from emulsion changes are small when it's close to ideal. But it depends if small gains are worth it to you.

[ChrisR]

Understood. Many thanks mate.